SoLightModel (3)

#include <Inventor/nodes/SoLightModel.h>

Inherits SoNode.

Public Types

enum Model { BASE_COLOR = SoLazyElement::BASE_COLOR, PHONG = SoLazyElement::PHONG }

Public Member Functions

virtual SoType getTypeId (void) const

Returns the type identification of an object derived from a class inheriting SoBase. This is used for run-time type checking and 'downward' casting. SoLightModel (void)

virtual void doAction (SoAction *action)

virtual void GLRender (SoGLRenderAction *action)

virtual void callback (SoCallbackAction *action)

Static Public Member Functions

static SoType getClassTypeId (void)

static void initClass (void)

Public Attributes

SoSFEnum model

Protected Member Functions

virtual const SoFieldData * getFieldData (void) const

virtual ~SoLightModel ()

Static Protected Member Functions

static const SoFieldData ** getFieldDataPtr (void)

Additional Inherited Members

The SoLightModel class is a node for specifying the model for geometry lighting.

Use nodes of this type to set up how lighting should affect subsequent geometry in the scene.

FILE FORMAT/DEFAULTS:

LightModel {
    model PHONG
}

enum \fBSoLightModel::Model\fP

Enumerates available light models.

Enumerator

BASE_COLOR

Use the current diffuse material color for subsequent geometry, and do not let any lightsources influence the appearance of the rendering primitives.

PHONG

Use Phong-style shading for the geometry.

SoLightModel::SoLightModel (void)

Constructor.

SoLightModel::~SoLightModel ()\fC [protected]\fP, \fC [virtual]\fP

Destructor.

\fBSoType\fP SoLightModel::getTypeId (void) const\fC [virtual]\fP

Returns the type identification of an object derived from a class inheriting SoBase. This is used for run-time type checking and 'downward' casting. Usage example:

void foo(SoNode * node)
{
  if (node->getTypeId() == SoFile::getClassTypeId()) {
    SoFile * filenode = (SoFile *)node;  // safe downward cast, knows the type
  }
}

For application programmers wanting to extend the library with new nodes, engines, nodekits, draggers or others: this method needs to be overridden in all subclasses. This is typically done as part of setting up the full type system for extension classes, which is usually accomplished by using the pre-defined macros available through for instance Inventor/nodes/SoSubNode.h (SO_NODE_INIT_CLASS and SO_NODE_CONSTRUCTOR for node classes), Inventor/engines/SoSubEngine.h (for engine classes) and so on.

For more information on writing Coin extensions, see the class documentation of the toplevel superclasses for the various class groups.

Implements SoBase.

const \fBSoFieldData\fP * SoLightModel::getFieldData (void) const\fC [protected]\fP, \fC [virtual]\fP

Returns a pointer to the class-wide field data storage object for this instance. If no fields are present, returns NULL.

Reimplemented from SoFieldContainer.

void SoLightModel::doAction (\fBSoAction\fP *action)\fC [virtual]\fP

This function performs the typical operation of a node for any action.

Reimplemented from SoNode.

void SoLightModel::GLRender (\fBSoGLRenderAction\fP *action)\fC [virtual]\fP

Action method for the SoGLRenderAction.

This is called during rendering traversals. Nodes influencing the rendering state in any way or who wants to throw geometry primitives at OpenGL overrides this method.

Reimplemented from SoNode.

void SoLightModel::callback (\fBSoCallbackAction\fP *action)\fC [virtual]\fP

Action method for SoCallbackAction.

Simply updates the state according to how the node behaves for the render action, so the application programmer can use the SoCallbackAction for extracting information about the scene graph.

Reimplemented from SoNode.

\fBSoSFEnum\fP SoLightModel::model

Lightmodel to use. Defaults to SoLightModel::PHONG.

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